US1287449A - Electric-light socket. - Google Patents

Description

A. C. RYDER.

ELECTRIC LIGHT SOCKET.

APPLICATION man amza. ms.

1,287,449. Patented Dec. 10, 1918.

C 'nucuhw A. C. Ryder ALFRED CORNELIUS RYDER, OF MONTGOMERY, ALABAMA.

ELECTRIC-LIGHT SOCKET.

Specification of Letters Patent.

Patented Dec. 10, 1918.

Application filed April 29, 1918. Serial No, 281,389.

To all whom it may concern:

Be it known that I, ALFRED C. RYDER, a citizen of the United States, residlng at Montgomery, in the county of Montgomery, State of Alabama, have invented a new and useful Electric-Light Socket; and I do hereby declare the followin to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The resent invention relates to an electric lig t socket, and has for its object to Iprovide a device of this character which emodies novel features of construction whereby a threaded plug or the conventional threaded base of an incandescent light can be forced into position within the socket or forcibly withdrawn therefrom without the necessity of screwing it into and out of osition, thereby avoiding the loss of tlme which is incident to the use of the ordinary threaded socket, as well as the objectionable twisting of the wire or cable where a plug is fitted in the socket.

Further objects of the invention are to provide a device of this character which is comparatively sim 1e and inexpensive in its construct on, w ich can be embodied in the conventional socket casing and utilized in connection with the usual switch, which forms a good contact, and which holds the [111% or lamp securely in position.

ith these and other objects in view, the invention consists in certain novel combinatrons and arrangements of the parts as will more fully appear as the description proceeds, the novel features thereof being pointed out in the appended claims. a

For a full understanding of the invention, reference is to be had to the following descfi pltiion and accompanying drawing, in w 1c Figure 1 is a side elevation of an electric light socket constructed in accordance with the invention, portions being broken away and shown in section to illustiate the construction of the inner contact linin or shell.

Fig. 2 is a bottom plan view of tfie contact shell, showing the the socket.

Fig. 3 is a side elevation thereof.

Fig. 4 is an enlarged longitudinal sectional view through one side of the contact shell, showing one of the pointed spring noses.

same as detached from Fig. 5 is a side elevation of the contact shell with a portion thereof broken away to show the relative positioning of the several pointed spring noses to engage the conventional threads of a plug or electric light base Corresponding and like parts are referred to in the following description andindicated in all the views of the drawings by the same reference characters.

Referring to the drawings, which illustrate one embodiment of the invention, the numeral 1 designates the outer shell of an electric light socket A which may be rovided in the upper end thereof with a swltch of the usual construction, said switch being controlled by the finger piece 2. A wire or cable 3 enters the socket through the upper end thereof, and the outer shell 1 is lined with the usual insulatin sleeve 4.

A tubular contact she 5 of a proper size to receive the conventional threaded plug or electric light base is fitted in the open end of the casing 1, being insulated therefrom by the sleeve 4. upper end of the contact shell is flanged at 6 for attachment in the usual manner to the porcelain body 7 in the upper end of the socket. One side of the contact shell 5 is cut away at the upper end thereof as indicated at 8, to provide a clearance opening for the center contact arm 9, the usual insulating disk 10 being interposed between the center contact arm and the flanged upper end 6 of the shell 5.

A series of longitudinal slits 12 extend along the sides of the contact shell 5 from the outer end thereof and sub-divide the open end of the shell into a series of resilient sections which will accommodate themselves to the size of the outer casing and insulating sleeve and have a firm frictional en age. ment with the latter. Each of these resilient sections of the contact shell is provided with an opening 14 through which a pointed s ring nose 15 projects into the interior of the shell. These pointed noses 15 are formed by sharp crimps in the middle portions of spring strips 16, the end portions of the sprin strips extending upwardly and downward y respectively along the exterior of the shell 5, and being threaded back and forth throu h a air of openings in the ell, as in icate at 17, so as to have a firm interlocki The pointed spring noses 15 project into the shell at a plurality of points in the periphconnection with the shell.

or thereof, and serve to en age the threaded si e walls of a oonventiona plug or electric light base. The several resilient noses 15 are arranged at sli htlydifferent points in the length of the s ell 5, as is more clearly indicated by Fi 5, so that they will engage the conventiona threads of a plug an a mit of the latter being screwed firmly home after being initially thrust into the socket. When ap lying a lug or electric light base to the soc et it is orcibly pushed into position, the resiliency of the pointed noses 15 enabling them to yield a suflicient amount to slip over the threaded sides of the plug. After the plug has been positioned it may be iven a turn to seat it firmly in position an insure a proper contact with the center contact arm 9. When it is desired to remove the plu from the socket it can be forcibly pulle out of position. All of the delay incident to screwing and unscrewing a plug in the socket is thus avoided, as well as the objectionable twisting of the cable or cord which is always incident to screwing a plu into a socket.

Ifavin thus described the invention, what I c aim as new and desire to secure by Letters Patent, is

1. A socket for electric lights and the like, including an inner contact shell havin smooth sides and provided at different points in the periphery thereof with a series of openings, and s ring strips applied to the exterior of the 5 middle portions with sharp crim'ps which project through the openings of the shell ell and formed at their into the interior thereof, the end portions of the spring strips being threaded back and forth through the shell and firmly anchored in position thereon, while the sharp crim s A forc ly pushed into or pulled from 081- tion.

2. A socket for electric lights and thelike,

including an inner contact shell haying smooth sides and provided with longitudinal slits extendin from the open end thereof and sub-dividing the same into a series of resilient sections. each section being formed with an opening, and spring strips applied to the exterior of the shell and having the middle portions thereof formed with sharp crimps which roject through thesaid openings, while the end portions of the sprin strips are threaded back and forth throug the shell and firmly anchored in position thereon, the sharp crimps providing spring noses which are adapted to engage the threads of a conventional plug, and which are ieldable to admit of the plug being forci ly pushed into or ulled from position.

n testimony whereof I have signed my name to this specification in the presence of two subscriuing witnesses.

R, RAY A. Gemini.

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